Mastering Java: The Ultimate Quiz for 'Thinking in Java'

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Prepare for your Java exam with our ultimate quiz based on 'Thinking in Java'. Engage with expertly crafted questions that enhance your learning process. Perfect for Java enthusiasts looking to solidify their knowledge!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What method do you use to make a JFrame visible?

  1. showFrame()

  2. setVisible(true)

  3. displayFrame()

  4. openFrame()

The correct answer is: setVisible(true)

The method used to make a JFrame visible is setVisible(true). This method sets the visibility of the frame to true, making it appear on the screen. Option A, showFrame(), is not a valid method for JFrame. Option C, displayFrame(), is incorrect as the method to display a frame is not specific to JFrame and can be used for other types of components. Option D, openFrame(), is incorrect as it is not a valid method for JFrame. Therefore, the correct method to make a JFrame visible is B, setVisible(true).